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Arduino/hardware/cores/arduino/Print.cpp
2008-06-21 23:16:27 +00:00

157 lines
2.6 KiB
C++
Executable File

/*
Print.cpp - Base class that provides print() and println()
Copyright (c) 2008 David A. Mellis. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Modified 23 November 2006 by David A. Mellis
*/
#include <stdio.h>
#include <string.h>
#include <inttypes.h>
#include "wiring.h"
#include "Print.h"
// Public Methods //////////////////////////////////////////////////////////////
void Print::print(uint8_t b)
{
this->write(b);
}
void Print::print(char c)
{
print((byte) c);
}
void Print::print(const char c[])
{
while (*c)
print(*c++);
}
void Print::print(int n)
{
print((long) n);
}
void Print::print(unsigned int n)
{
print((unsigned long) n);
}
void Print::print(long n)
{
if (n < 0) {
print('-');
n = -n;
}
printNumber(n, 10);
}
void Print::print(unsigned long n)
{
printNumber(n, 10);
}
void Print::print(long n, int base)
{
if (base == 0)
print((char) n);
else if (base == 10)
print(n);
else
printNumber(n, base);
}
void Print::println(void)
{
print('\r');
print('\n');
}
void Print::println(char c)
{
print(c);
println();
}
void Print::println(const char c[])
{
print(c);
println();
}
void Print::println(uint8_t b)
{
print(b);
println();
}
void Print::println(int n)
{
print(n);
println();
}
void Print::println(unsigned int n)
{
print(n);
println();
}
void Print::println(long n)
{
print(n);
println();
}
void Print::println(unsigned long n)
{
print(n);
println();
}
void Print::println(long n, int base)
{
print(n, base);
println();
}
// Private Methods /////////////////////////////////////////////////////////////
void Print::printNumber(unsigned long n, uint8_t base)
{
unsigned char buf[8 * sizeof(long)]; // Assumes 8-bit chars.
unsigned long i = 0;
if (n == 0) {
print('0');
return;
}
while (n > 0) {
buf[i++] = n % base;
n /= base;
}
for (; i > 0; i--)
print((char) (buf[i - 1] < 10 ?
'0' + buf[i - 1] :
'A' + buf[i - 1] - 10));
}